1420032091 has 2 divisors, whose sum is σ = 1420032092. Its totient is φ = 1420032090.

The previous prime is 1420032077. The next prime is 1420032137. The reversal of 1420032091 is 1902300241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1420032091 - 2⁵ = 1420032059 is a prime.

It is a super-2 number, since 2×1420032091² = 4032982278939664562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1420032071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710016045 + 710016046.

It is an arithmetic number, because the mean of its divisors is an integer number (710016046).

Almost surely, 2^1420032091 is an apocalyptic number.

1420032091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420032091 is an equidigital number, since it uses as much as digits as its factorization.

1420032091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1420032091 is about 37683.3131637864. The cubic root of 1420032091 is about 1123.9993316844. Note that the first 3 decimals are identical.

The spelling of 1420032091 in words is "one billion, four hundred twenty million, thirty-two thousand, ninety-one".